Growth, mortality and yield per recruit of threadfin bream Nemipterus japonicus (Bloch) off Bombay

107-109The VBGF parameters in lenth for this species were estimated as L infinity = 356 mm, K = 0.75576 per year and t(0)= -0.0335825 y. This speics grows to 193, 281 and 322 mm at the end of I-III years of its life. Total, natural and fishing mortality were calculated as 3.58, 1.55 and 2.03 respectively. The exploitation rate and ratios were 0.54 and 0.56 respectively. Total and standing stocks were estimated as 3047 and 810 tonnes as compared to the present yield of 1645 tonnes